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- Title
Porosity Distribution in Apically Perforated Curved Root Canals Filled with Two Different Calcium Silicate Based Materials and Techniques: A Micro-Computed Tomography Study.
- Authors
Drukteinis, Saulius; Peciuliene, Vytaute; Shemesh, Hagay; Tusas, Paulius; Bendinskaite, Ruta
- Abstract
The present study evaluated the porosity distribution of BioRoot RCS/single gutta-percha point (BR/SC) and MTA flow (MF) fillings, which were used as plugs for the apical perforation repair in curved canals of extracted mandibular molars using micro-computed tomography (μCT). Forty mesial root canals of mandibular first molars were shaped with ProTaper NEXT X1–X5 files 2 mm beyond the apex to simulate apical perforations that were randomly divided into two groups (n = 20) according to the material and technique used for the apical plug: BR/SC or MF. The specimens were scanned before and after canal filling at an isotropic resolution of 9.9 μm. The volumetric analysis of voids in the apical 5 mm of the fillings was performed. Data were analyzed using one-way ANOVA with Bonferroni correction (p < 0.05). Micro-computed tomography (µCT) evaluation revealed significant differences between the groups in terms of porosity: the total volume and percentage volume of voids was lower in the BR/SC group in comparison with the MF group (p < 0.05), with the predominance of open pores in both groups. Neither of the materials and/or application techniques were able to produce void-free root fillings in the apical region of artificially perforated curved roots of mandibular molars.
- Subjects
GUTTA-percha; CALCIUM silicates; ROOT canal treatment; TOMOGRAPHY; POROSITY; VOLUMETRIC analysis; BONFERRONI correction
- Publication
Materials (1996-1944), 2019, Vol 12, Issue 11, p1729
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma12111729